VDB

CVE-2026-78515

CVE-2026-78515 PUBLISHED CVSS 6.5 MEDIUM

Reported by microsoft · Published September 8, 2026

Out-of-bounds read in Microsoft Office Excel allows an unauthorized attacker to disclose information over a network.

Risk Scores

CVSS 3.1
6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C

Affected Products

VendorProductVersions
MicrosoftMicrosoft 365 Apps for Enterprise16.0.1
MicrosoftMicrosoft Office 201616.0.0
MicrosoftMicrosoft Office 201919.0.0
MicrosoftMicrosoft Office 365 for Mac-
MicrosoftMicrosoft Office LTSC 202116.0.1
MicrosoftMicrosoft Office LTSC 202416.0.0
MicrosoftMicrosoft Office LTSC for Mac 202116.0.1
MicrosoftMicrosoft Office LTSC for Mac 202416.0.0
MicrosoftMicrosoft Office LTSC 202116.0.1
MicrosoftMicrosoft Office LTSC for Mac 202116.0.1
MicrosoftMicrosoft Office 201919.0.0
microsoftoffice_202116.0.1
microsoftoffice_macos_202116.0.1
MicrosoftMicrosoft Office LTSC for Mac 202416.0.0
microsoftoffice_202416.0.0
MicrosoftMicrosoft Office 365 for Mac-
MicrosoftMicrosoft Office 201616.0.0
MicrosoftMicrosoft Office LTSC 202416.0.0
microsoftoffice_201616.0.0
microsoftoffice_365-

…and 4 more

Timeline

  • Sep 8, 2026 Coalition ESS Score
  • Sep 8, 2026 CVE Published
  • Sep 8, 2026 CVE Updated
  • Sep 9, 2026 Security Advisory

References

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